Aircraft
Certification Service Washington, DC U.S. Department of Transportation Federal Aviation Administration
SW-08-16
April 2, 2008
This is information only. Recommendations
aren’t mandatory.
Introduction
This Special Airworthiness Information Bulletin (SAIB) alerts owners
and operators of an electrical short in the air conditioning wiring of
Robinson Helicopter Company (Robinson) Model R44 II helicopters thru
serial number 12167.
Background
Robinson has received a report of an electrical short in the air
conditioning wiring. The short was found in the A/C switch wires in the
overhead duct assembly and was caused by the wires chafing against the
aluminum support strap in the duct. Chafing occurred in the wiring
between the aircraft headliner and connectors for the duct assembly.
Recommendation
We recommend that owners/operators of Robinson Model R44 II helicopters
equipped with air conditioning comply with Robinson Service Bulletin
SB-65, dated February 22, 2008, which specifies installing additional
wire protection in two locations.
For Further Information Contact
Ms. Venessa Stiger, Aerospace Engineer; Los Angeles Aircraft
Certification Office, ANM-150L, 3960 Paramount Boulevard, Lakewood,
California 90712, phone: (562) 627-5337; fax: (562) 627-5210, email:
venessa.stiger@faa.gov.